20230202
08550600
1.0
FGDC CSDGM Metadata
FALSE
Potomac_011_flowdirectionelevation
002
1597489.033000
1870855.738300
43479.663300
498647.145300
1
0.000
Projected
GCS_WGS_1984
<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.1.0'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem>
Linear Unit: Meter (1.000000)
WGS_1984_Web_Mercator_Auxiliary_Sphere
20230601
21144200
20230601
21144200
FGDC
Bureau of Economic Geology
10100 Burnet Rd. Bldg. 130
Austin
TX
78729
US
8-5
20230601
ArcGIS Metadata
1.0
BEG
10100 Burnet Rd. Bldg 139
Austin
Texas
78758
US
Enterprise Geodatabase Feature Class
0.000
Flow Direction for Potomac
<DIV STYLE="text-align:Left;"><P STYLE="font-size:16ptmargin:7 0 7 0;"><SPAN><SPAN>Several authors characterized ground-water flow in the lower Potomac interval (Trapp and Meisler, 1992; Leahy and Martin, 1993; Trapp and Horn, 1997; Pope and Gordon, 1999). However, these studies focus on measuring and/or modeling hydraulic head in areas where the lower Potomac aquifer is shallow and contains fresh water, and their maps cover only areas that are inland (up dip) of the area of interest in this study. We used the combined information from Trapp and Meisler (1992), Leahy and Martin (1993), Trapp and Horn (1997), and Pope and Gordon (1999) to generate the hydraulic head/flow direction map presented in the GIS.</SPAN></SPAN></P><DIV><P><SPAN /></P></DIV></DIV>
Flow Direction for Potomac Group
Leahy, P. P., and Martin, Mary, 1993, Geohydrology and simulation of ground-water flow in the Northern Atlantic Coastal Plain aquifer system: U.S. Geological Survey Professional Paper 1404-K, 81 p.
*
Pope, D. A., and Gordon, A. D., 1999, Simulation of ground-water flow and movement of the freshwater-saltwater interface in the New Jersey coastal plain: U.S. Geological Survey Water-Resources Investigations Report 98-4216, 159 p. *
Trapp, H., Jr., and Horn, M. A., 1997, Ground water atlas of the United States—segment 11, Delaware, Maryland, New Jersey, North Carolina, Pennsylvania, Virginia, West Virginia: U.S. Geological Survey Hydrologic Investigations, Atlas No. HA-730-L, 30 p.
*
Trapp, H., Jr., 1992, Hydrogeologic framework of the northern Atlantic coastal plain in parts of North Carolina, Virginia, Maryland, Delaware, New Jersey, and New York: U.S. Geological Survey Professional Paper 1404-G, 59 p., 13 plates
New Jersey
Delaware
Maryland
Lower Potomac Group
Lower Potomac Group
Maryland
Delaware
New Jersey
Access constraints: Restriction Code: other restrictions; Other Constraints: Access constraints: None
See access and use constraints information.
Esri ArcGIS 13.1.0.41833
-77.885074
-73.693927
36.024724
40.509105
1
002
0
dataset
EPSG
6.18.3(9.3.1.2)
Simple
FALSE
0
TRUE
FALSE
Potomac_011_flowdirectionelevation
Feature Class
0
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
8
0
0
Feature geometry.
ESRI
Coordinates defining the features.
SEG_ID
SEG_ID
Double
8
38
8
POTENC_FT_
POTENC_FT_
Double
8
38
8
POTENC_M_
POTENC_M_
Double
8
38
8
source_organization
Source Organization
String
255
0
0
hyperlink
Link
String
255
0
0
resource_date
Date of Resource
String
255
0
0
Shape_Leng
Shape_Leng
Double
8
38
8
st_length(shape)
st_length(shape)
Double
0
0
0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